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Ping Chang, Taiwan

Jenn Feng Industrial Co., Ltd.

USPTO Granted Patents = 22

Trademarks = 3

Forward Citations = 229

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9 inventors (with patents filed for the assignee):

Jung-Chang Jong (16 out of 17 patents)

Chuan-Lung Chuang (2 out of 5 patents)

R Reade Harpham (1 out of 14 patents)

4. Joseph A Juratovac (1 out of 20 patents)

5. Ming-Fu Jong (1 out of 1 patent)

6. Rod Harms (1 out of 1 patent)

7. Darrel E Williamson (1 out of 1 patent)

8. Trever S Brown (1 out of 1 patent)

9. Michael Krull (1 out of 3 patents)

22 patents: Sort by Forward Citations

1. 8293567 - CIGS solar cell having thermal expansion buffer layer and method for fabricating the same (2012-10-23),

2. 7922804 - Method for preparing sol-gel solution for CIGS solar cell (2011-04-12),

3. 6909061 - Trigger-brake structure for tool machine (2005-06-21),

4. 6698566 - Clutch type safety switch for power tools (2004-03-02),

5. 6622341 - Position shifting plate for an air blowing device (2003-09-23),

6. 6575285 - Safety switch for power tools (2003-06-10),

7. D473116 - Hedge trimmer (2003-04-16),

8. 6548776 - Safety device for on/off switch of an electric tool (2003-04-15),

9. 6532671 - Tension adjustment device for a chain saw (2003-03-18),

10. D469200 - Flashlight (2003-01-22),

11. 6469269 - Two-stage self-locking switch structure for hand tools (2002-10-22),

12. 6454020 - Locking device for output shaft of electric tools (2002-09-24),

13. D460973 - Lawn mower (2002-07-31),

14. D459559 - Blower (2002-06-26),

15. D457897 - Lawn mower (2002-05-29),

Jenn Feng Industrial Co., Ltd. is a leading manufacturer of high-quality fans and blowers. With over 30 years of experience, the company is known for its innovative design, superior performance, and reliable products. Their extensive product line includes industrial fans, exhaust fans, ventilation fans, and more. Jenn Feng Industrial Co., Ltd. is committed to providing excellent customer service and meeting the diverse needs of clients worldwide.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

22 Patents

#1 in Ping Chang

#733 in Taiwan

#27,905 in the World

Ping Chang, Taiwan

Jenn Feng Industrial Co., Ltd.

Forward Citations = 229

9 inventors:

Jung-Chang Jong (16 out of 17 patents)

Chuan-Lung Chuang (2 out of 5 patents)

R Reade Harpham (1 out of 14 patents)

4. Joseph A Juratovac (1 out of 20 patents)

5. Ming-Fu Jong (1 out of 1 patent)

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